Deal with frame removal by content scripts

chrome/renderer/chrome_content_renderer_client.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 #define CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 128 matching lines @@
       const std::string& mime_type,
       const GURL& original_url) override;
   void RecordRappor(const std::string& metric,
                     const std::string& sample) override;
   void RecordRapporURL(const std::string& metric, const GURL& url) override;
   scoped_ptr<blink::WebAppBannerClient> CreateAppBannerClient(
       content::RenderFrame* render_frame) override;
   void AddImageContextMenuProperties(
       const blink::WebURLResponse& response,
       std::map<std::string, std::string>* properties) override;
+  void RunScriptsAtDocumentStart(content::RenderFrame* render_frame) override;
+  void RunScriptsAtDocumentEnd(content::RenderFrame* render_frame) override;
   void DidInitializeServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
       const GURL& url) override;
   void WillDestroyServiceWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context,
       const GURL& url) override;
   bool ShouldEnforceWebRTCRoutingPreferences() override;
   base::StringPiece GetOriginTrialPublicKey() override;
 
 #if defined(ENABLE_SPELLCHECK)
@@ skipping 57 matching lines @@
 #if defined(ENABLE_PRINT_PREVIEW)
   scoped_ptr<ChromePDFPrintClient> pdf_print_client_;
 #endif
 #if defined(ENABLE_PLUGINS)
   std::set<std::string> allowed_camera_device_origins_;
   std::set<std::string> allowed_compositor_origins_;
 #endif
 };
 
 #endif  // CHROME_RENDERER_CHROME_CONTENT_RENDERER_CLIENT_H_